AU3447200A - Method and apparatus for prolonging the life of an x-ray target - Google Patents

Method and apparatus for prolonging the life of an x-ray target

Info

Publication number
AU3447200A
AU3447200A AU34472/00A AU3447200A AU3447200A AU 3447200 A AU3447200 A AU 3447200A AU 34472/00 A AU34472/00 A AU 34472/00A AU 3447200 A AU3447200 A AU 3447200A AU 3447200 A AU3447200 A AU 3447200A
Authority
AU
Australia
Prior art keywords
target
life
prolonging
ray target
electron
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Abandoned
Application number
AU34472/00A
Inventor
Graham Vincent Fraser
Neil Loxley
Mark Taylor
John Leonard Wall
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Bede Scientific Instruments Ltd
Original Assignee
Bede Scient Instruments Ltd
Bede Scientific Instruments Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Bede Scient Instruments Ltd, Bede Scientific Instruments Ltd filed Critical Bede Scient Instruments Ltd
Publication of AU3447200A publication Critical patent/AU3447200A/en
Abandoned legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05G—X-RAY TECHNIQUE
    • H05G1/00—X-ray apparatus involving X-ray tubes; Circuits therefor
    • H05G1/08—Electrical details
    • H05G1/26—Measuring, controlling or protecting
    • H05G1/30—Controlling
    • H05G1/36—Temperature of anode; Brightness of image power
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J35/00—X-ray tubes
    • H01J35/02—Details
    • H01J35/14—Arrangements for concentrating, focusing, or directing the cathode ray
    • H01J35/147—Spot size control
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J35/00—X-ray tubes
    • H01J35/02—Details
    • H01J35/14—Arrangements for concentrating, focusing, or directing the cathode ray
    • H01J35/153—Spot position control
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J35/00—X-ray tubes
    • H01J35/24—Tubes wherein the point of impact of the cathode ray on the anode or anticathode is movable relative to the surface thereof
    • H01J35/30—Tubes wherein the point of impact of the cathode ray on the anode or anticathode is movable relative to the surface thereof by deflection of the cathode ray

Landscapes

  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • X-Ray Techniques (AREA)

Abstract

An x-ray generator (1) comprises an electron gun (3), an electron focusing lens (15) and an x-ray target (4). The x-ray generator (1) has electronic control means which controls the electron focusing lens (15) to move the electron beam (28,38) to a fresh area (23) of the target (4) when the previous area (22) of the target (4) becomes degraded through use. In this way the life of the target (4) is increased.
AU34472/00A 1999-03-26 2000-03-27 Method and apparatus for prolonging the life of an x-ray target Abandoned AU3447200A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GBGB9906886.8A GB9906886D0 (en) 1999-03-26 1999-03-26 Method and apparatus for prolonging the life of an X-ray target
GB9906886 1999-03-26
PCT/GB2000/001164 WO2000058991A1 (en) 1999-03-26 2000-03-27 Method and apparatus for prolonging the life of an x-ray target

Publications (1)

Publication Number Publication Date
AU3447200A true AU3447200A (en) 2000-10-16

Family

ID=10850332

Family Applications (1)

Application Number Title Priority Date Filing Date
AU34472/00A Abandoned AU3447200A (en) 1999-03-26 2000-03-27 Method and apparatus for prolonging the life of an x-ray target

Country Status (8)

Country Link
US (1) US6778633B1 (en)
EP (2) EP1166317B1 (en)
JP (1) JP2002540581A (en)
AT (1) ATE258336T1 (en)
AU (1) AU3447200A (en)
DE (1) DE60007852T2 (en)
GB (1) GB9906886D0 (en)
WO (1) WO2000058991A1 (en)

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Also Published As

Publication number Publication date
WO2000058991A1 (en) 2000-10-05
EP1166317B1 (en) 2004-01-21
EP1166317A1 (en) 2002-01-02
DE60007852D1 (en) 2004-02-26
ATE258336T1 (en) 2004-02-15
GB9906886D0 (en) 1999-05-19
DE60007852T2 (en) 2004-09-30
EP1213743A2 (en) 2002-06-12
EP1213743A3 (en) 2007-02-21
JP2002540581A (en) 2002-11-26
US6778633B1 (en) 2004-08-17

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Legal Events

Date Code Title Description
MK6 Application lapsed section 142(2)(f)/reg. 8.3(3) - pct applic. not entering national phase